作者:Goundry, William R. F.、Poulton, Andrew M.、Welham, Matthew、Dai, Kuangchu、Zhu, Xiaohong、Tao, Haijun、Tang, Canlin、Magne, Fanny、Cottineau, Bertrand
DOI:10.1021/acs.oprd.4c00175
日期:——
AstraZeneca is currently developing an antibody–drug conjugate for the treatment of cancer with a topoisomerase I inhibitor payload. The drug portion of the molecule is an analogue of the natural product camptothecin. We describe the initial scale-up of the synthesis to meet preclinical timelines, including route design work to shorten the route by five steps. We also detail several problems we encountered
阿斯利康目前正在开发一种抗体-药物偶联物,用于通过拓扑异构酶 I 抑制剂有效负载治疗癌症。该分子的药物部分是天然产物喜树碱的类似物。我们描述了合成的初步放大以满足临床前时间表,包括将路线缩短五个步骤的路线设计工作。我们还详细介绍了我们遇到的几个问题,最明显的是最后一步的低产量。我们开发了第二代路线来解决这些问题,将总产量从 3.4% 提高到 7.8%,同时将工艺质量强度降低 66%。我们讨论了整个过程中形成的杂质,并重点介绍了去除它们的后处理和纯化策略。